Aurora R10, when add two SSDs, will boot OK, but not "restart"

Hi. So, I've been at this for a few days. Was able to get RAM up to 32GB, stable at 3200, no problem.

Have two older SATA SSDs (128GB each). They install easily enough in the two spare, empty slots. and are recognized by windows as E, G ("fast, blank space" for photo, video editing purposes).

system storage: OS C: 460GB (PCIe bus)

                         DATA 1.8 TB (3.5 SATA HDD)

                         PLEX-128 E-- 119 GB (SATA SSD)

                          easystore  F -- 7.3 TB (USB ext drive)

                        back up-scratch F: 118 GB (STAT SSD)

System works fine when shut down; rebooted. But if try "restart" (or program/windows update triggers "restart") it won't get to windows boot. (stops at Alienware logo; no circular dots). Pull SATA SSDs- restarts fine. Turn machine off and reboot, starts fine (but I don't like doing that manually).

I've tried a few things in BIOS, but don't quite understand (and find it odd "RAID" is the default setting vs. ACHI?), so put things back at default.

I've called DELL SUPPORT, but when they hear it's not their SSDs, the offer to have service tech call me back in 48 hours at an unspecified charge. (no thanks). Is there something obvious that I am missing. System has recently been "restored to factory setting" and subsequently updated, populated with programs.

Or can I go through life without restarting? (that's like poetry, huh?).